diff --git a/lesscpy/lessc/color.py b/lesscpy/lessc/color.py
index c0da7fa..cde21b3 100644
--- a/lesscpy/lessc/color.py
+++ b/lesscpy/lessc/color.py
@@ -105,7 +105,7 @@ class Color():
             if isinstance(s, str):
                 s = int(s.strip('%'))
             rgb = colorsys.hls_to_rgb(int(h) / 360.0, l / 100.0, s / 100.0)
-            color = (round(c * 255) for c in rgb)
+            color = (utility.convergent_round(c * 255) for c in rgb)
             return self._rgbatohex(color)
         raise ValueError('Illegal color values')
 
@@ -123,8 +123,8 @@ class Color():
             if isinstance(s, str):
                 s = int(s.strip('%'))
             rgb = colorsys.hls_to_rgb(int(h) / 360.0, l / 100.0, s / 100.0)
-            color = [float(round(c * 255)) for c in rgb]
-            color.append(round(float(a[:-1]) / 100.0, 2))
+            color = [float(utility.convergent_round(c * 255)) for c in rgb]
+            color.append(utility.convergent_round(float(a[:-1]) / 100.0, 2))
             return "rgba(%s,%s,%s,%s)" % tuple(color)
         raise ValueError('Illegal color values')
 
@@ -139,7 +139,7 @@ class Color():
         """
         if color:
             h, l, s = self._hextohls(color)
-            return round(h * 360.0, 3)
+            return utility.convergent_round(h * 360.0, 3)
         raise ValueError('Illegal color values')
 
     def saturation(self, color, *args):
@@ -260,7 +260,7 @@ class Color():
             h = ((h * 360.0) + degree) % 360.0
             h = 360.0 + h if h < 0 else h
             rgb = colorsys.hls_to_rgb(h / 360.0, l, s)
-            color = (round(c * 255) for c in rgb)
+            color = (utility.convergent_round(c * 255) for c in rgb)
             return self._rgbatohex(color)
         raise ValueError('Illegal color values')
 
@@ -364,5 +364,5 @@ class Color():
         hls = list(self._hextohls(color))
         hls[idx] = self._clamp(getattr(hls[idx], op)(diff / 100.0))
         rgb = colorsys.hls_to_rgb(*hls)
-        color = (round(c * 255) for c in rgb)
+        color = (utility.away_from_zero_round(c * 255) for c in rgb)
         return self._rgbatohex(color)
diff --git a/lesscpy/lessc/utility.py b/lesscpy/lessc/utility.py
index 33977a4..02b1d07 100644
--- a/lesscpy/lessc/utility.py
+++ b/lesscpy/lessc/utility.py
@@ -11,7 +11,9 @@
 from __future__ import print_function
 
 import collections
+import math
 import re
+import sys
 
 
 def flatten(lst):
@@ -243,3 +245,36 @@ def split_unit(value):
     """
     r = re.search('^(\-?[\d\.]+)(.*)$', str(value))
     return r.groups() if r else ('', '')
+
+
+def away_from_zero_round(value, ndigits=0):
+    """Round half-way away from zero.
+
+    Python2's round() method.
+    """
+    if sys.version_info[0] >= 3:
+        p = 10 ** ndigits
+        return float(math.floor((value * p) + math.copysign(0.5, value))) / p
+    else:
+        return round(value, ndigits)
+
+
+def convergent_round(value, ndigits=0):
+    """Convergent rounding.
+
+    Round to neareas even, similar to Python3's round() method.
+    """
+    if sys.version_info[0] < 3:
+        if value < 0.0:
+            return -convergent_round(-value)
+
+        epsilon = 0.0000001
+        integral_part, _ = divmod(value, 1)
+
+        if abs(value - (integral_part + 0.5)) < epsilon:
+            if integral_part % 2.0 < epsilon:
+                return integral_part
+            else:
+                nearest_even = integral_part + 0.5
+                return math.ceil(nearest_even)
+    return round(value, ndigits)
diff --git a/lesscpy/plib/call.py b/lesscpy/plib/call.py
index d2fe8c7..2b8bbcb 100644
--- a/lesscpy/plib/call.py
+++ b/lesscpy/plib/call.py
@@ -196,7 +196,7 @@ class Call(Node):
             str
         """
         n, u = utility.analyze_number(value)
-        return utility.with_unit(int(round(float(n))), u)
+        return utility.with_unit(int(utility.away_from_zero_round(float(n))), u)
 
     def ceil(self, value, *args):
         """ Ceil number
diff --git a/lesscpy/plib/expression.py b/lesscpy/plib/expression.py
index 6bd27ce..d758db1 100644
--- a/lesscpy/plib/expression.py
+++ b/lesscpy/plib/expression.py
@@ -96,7 +96,7 @@ class Expression(Node):
                 return str(val) + ua
             elif ub:
                 return str(val) + ub
-        return str(val)
+        return repr(val)
 
     def operate(self, vala, valb, oper):
         """Perform operation
@@ -125,7 +125,9 @@ class Expression(Node):
         else:
             ret = getattr(vala, operation)(valb)
         if ret is NotImplemented:
-            ret = getattr(valb, operation)(vala)
+            # __truediv__(int, float) isn't implemented, but __truediv__(float, float) is.
+            # __add__(int, float) is similar. Simply cast vala to float:
+            ret = getattr(float(vala), operation)(valb)
         if oper in '+-*/':
             try:
                 if int(ret) == ret:
diff --git a/lesscpy/test/css/calls.css b/lesscpy/test/css/calls.css
index d0f6aef..cde5394 100644
--- a/lesscpy/test/css/calls.css
+++ b/lesscpy/test/css/calls.css
@@ -6,6 +6,8 @@
 	decrement: 9;
 	rounded: 11;
 	roundedpx: 3px;
+	round25: 3;
+	round15: 2;
 }
 #escapes {
 	escaped: -Some::weird(#thing, y);
@@ -19,7 +21,7 @@
 	format-url-encode: 'red is %23ff0000';
 }
 #more {
-	width: 1px;
+	width: 2px;
 	height: 1px;
 	top: 50%;
 }
diff --git a/lesscpy/test/css/calls.min.css b/lesscpy/test/css/calls.min.css
index f5cb8c2..c896d45 100644
--- a/lesscpy/test/css/calls.min.css
+++ b/lesscpy/test/css/calls.min.css
@@ -1,6 +1,6 @@
-#standard{width:16;height:undefined("self");border-width:5;variable:11;decrement:9;rounded:11;roundedpx:3px;}
+#standard{width:16;height:undefined("self");border-width:5;variable:11;decrement:9;rounded:11;roundedpx:3px;round25:3;round15:2;}
 #escapes{escaped:-Some::weird(#thing, y);escaped1:-Some::weird(#thing, z);eformat:rgb(32, 128, 64);}
 #format{format:"rgb(32, 128, 64)";format-string:"hello world";format-multiple:"hello earth 2";format-url-encode:'red is %23ff0000';}
-#more{width:1px;height:1px;top:50%;}
+#more{width:2px;height:1px;top:50%;}
 #colors{filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#333333', GradientType=1);}
 a{background-image:linear-gradient(top,#ffffff,#333333);background-image:linear-gradient(top,#a6a6a6,#000000);}
diff --git a/lesscpy/test/css/colors.css b/lesscpy/test/css/colors.css
index 1f0d87d..78030de 100644
--- a/lesscpy/test/css/colors.css
+++ b/lesscpy/test/css/colors.css
@@ -91,7 +91,7 @@
 	color: #c1cdc8;
 	color: #ffffff;
 }
-.lighten {
+.darken {
 	color: #525252;
 	color: #3b3b3b;
 	color: #222222;
diff --git a/lesscpy/test/css/colors.min.css b/lesscpy/test/css/colors.min.css
index 839529d..b9ea18f 100644
--- a/lesscpy/test/css/colors.min.css
+++ b/lesscpy/test/css/colors.min.css
@@ -13,7 +13,7 @@
 .saturate{color:#565454;color:#5e4c4c;color:#664444;color:#773333;color:#882222;color:#aa0000;color:#000000;color:#000000;color:#ffffff;color:#ffffff;color:#29332f;color:#243830;color:#203c31;color:#174533;color:#0d4f35;color:#005c37;}
 .desaturate{color:#555555;color:#555555;color:#555555;color:#555555;color:#555555;color:#555555;color:#000000;color:#000000;color:#ffffff;color:#ffffff;color:#29332f;color:#2e2e2e;color:#2e2e2e;color:#2e2e2e;color:#2e2e2e;color:#2e2e2e;}
 .lighten{color:#585858;color:#6f6f6f;color:#888888;color:#bbbbbb;color:#eeeeee;color:#ffffff;color:#ffffff;color:#000000;color:#ffffff;color:#ffffff;color:#2b3632;color:#404f49;color:#566c63;color:#88a096;color:#c1cdc8;color:#ffffff;}
-.lighten{color:#525252;color:#3b3b3b;color:#222222;color:#000000;color:#000000;color:#000000;color:#000000;color:#000000;color:#000000;color:#ffffff;color:#27302c;color:#121715;color:#000000;color:#000000;color:#000000;color:#000000;}
+.darken{color:#525252;color:#3b3b3b;color:#222222;color:#000000;color:#000000;color:#000000;color:#000000;color:#000000;color:#000000;color:#ffffff;color:#27302c;color:#121715;color:#000000;color:#000000;color:#000000;color:#000000;}
 .spin{color:#555555;color:#555555;color:#555555;color:#555555;color:#555555;color:#555555;color:#000000;color:#000000;color:#ffffff;color:#ffffff;color:#29332f;color:#29332d;color:#293332;color:#2a3329;color:#292d33;color:#2c2933;}
 .grayscale{color:#000000;color:#000000;color:#ffffff;color:#ffffff;color:#2e2e2e;color:#2e2e2e;color:#2e2e2e;color:#2e2e2e;color:#2e2e2e;color:#2e2e2e;}
 .mix{color:#7f007f;color:#7f7f7f;color:#7f9055;color:#3f00bf;color:#ff0000;color:#0000ff;}
diff --git a/lesscpy/test/css/grid.css b/lesscpy/test/css/grid.css
index ba266f1..67674c2 100644
--- a/lesscpy/test/css/grid.css
+++ b/lesscpy/test/css/grid.css
@@ -124,13 +124,13 @@
 	margin-left: 59.1;
 }
 .offset3 {
-	margin-left: 87.8;
+	margin-left: 87.80000000000001;
 }
 .offset4 {
 	margin-left: 116.5;
 }
 .offset5 {
-	margin-left: 145.2;
+	margin-left: 145.20000000000002;
 }
 .offset6 {
 	margin-left: 173.9;
diff --git a/lesscpy/test/css/grid.min.css b/lesscpy/test/css/grid.min.css
index 215ccc7..06c58e4 100644
--- a/lesscpy/test/css/grid.min.css
+++ b/lesscpy/test/css/grid.min.css
@@ -39,9 +39,9 @@
 .span12,.container{width:342.7;}
 .offset1{margin-left:30.4;}
 .offset2{margin-left:59.1;}
-.offset3{margin-left:87.8;}
+.offset3{margin-left:87.80000000000001;}
 .offset4{margin-left:116.5;}
-.offset5{margin-left:145.2;}
+.offset5{margin-left:145.20000000000002;}
 .offset6{margin-left:173.9;}
 .offset7{margin-left:202.6;}
 .offset8{margin-left:231.3;}
diff --git a/lesscpy/test/less/calls.less b/lesscpy/test/less/calls.less
index b420bc7..8cd987a 100644
--- a/lesscpy/test/less/calls.less
+++ b/lesscpy/test/less/calls.less
@@ -11,6 +11,8 @@
   	decrement: decrement(@var);
   	rounded: round(@r/3);
   	roundedpx: round(10px / 3);
+        round25: round(2.5);
+        round15: round(1.5);
 }
 #escapes {
   	escaped: e("-Some::weird(#thing, y)");
diff --git a/lesscpy/test/less/colors.less b/lesscpy/test/less/colors.less
index 89b0fa2..14dccf2 100644
--- a/lesscpy/test/less/colors.less
+++ b/lesscpy/test/less/colors.less
@@ -98,7 +98,7 @@
 	color: lighten(#29332f, 60%);
 	color: lighten(#29332f, 100%);
 }
-.lighten {
+.darken {
 	color: darken(#555, 1%);
 	color: darken(#555, 10%);
 	color: darken(#555, 20%);
diff --git a/lesscpy/test/testutility.py b/lesscpy/test/testutility.py
index 3bf8ea1..3a2a992 100644
--- a/lesscpy/test/testutility.py
+++ b/lesscpy/test/testutility.py
@@ -92,6 +92,20 @@ class TestUtility(unittest.TestCase):
         self.assertEqual('1', test(1, None))
         self.assertEqual('1', test(1,))
 
+    def test_convergent_round(self):
+        test = utility.convergent_round
+        self.assertEqual(-4, test(-4.5))
+        self.assertEqual(-4, test(-3.5))
+        self.assertEqual(-2, test(-2.5))
+        self.assertEqual(-2, test(-1.5))
+        self.assertEqual(0, test(-0.5))
+        self.assertEqual(0, test(0.5))
+        self.assertEqual(2, test(1.5))
+        self.assertEqual(2, test(2.5))
+        self.assertEqual(3.0, test(10.0 / 3, 0))
+        self.assertEqual(4, test(3.5))
+        self.assertEqual(4, test(4.5))
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/setup.py b/setup.py
index dc0e9ae..c42b00a 100755
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@ from distutils.core import setup
 
 setup(
       name='lesscpy',
-      version='0.9i',
+      version='0.9j',
       description='Lesscss compiler.',
       author='Jóhann T Maríusson',
       author_email='jtm@robot.is',